From Win XP Help:
USB ports have a separate entry in Device Manager. To check the device status, click Universal Serial Bus controllers, right-click USB Root Hub, and then click Properties. If you do not see USB Root Hub, you might not have a USB port installed on your computer.
You can also use the Hardware troubleshooter to diagnose and solve problems with hardware devices such as USB game controllers. Start the Hardware troubleshooter.
USB devices do not have port assignments. Windows recognizes them as "Human Interfaces". When you boot with something plugged into a USB connection it should be recognized even if it's recognized as a "unknown device".
Make sure your USB controllers are enabled in bios.
Edited by Enthusiast, 15 March 2006 - 08:18 PM.